Ozonizer.



OL LINDER.

OZONIZER.

APPLICATION FILED 'JUNE 18, 1910.

Patented Sept. 6,1910.

2 SHEETS-annif 1.

Fng I 0. LINDER.

ozoNIZBR. APPLICATIONk I'ILBD J'UE 1B, 1910..

Patented sept. 6,1910

discharge may take place;

UNITED srarnsgifgnnr OFFICE.

OSCAR LINDER. OF CHICAGO, ILLINOIS. ASSIGNOR TO STANDARD ELECTRO-UTILITIES COMPANY, A CORPORATION OF ARIZONA TERRITORY.

OZONIZER.

Speceation of Letters Patent. Application led June 18. 19.10.

Serial No. 567,656.

To all whom it may conrfrn:

Be it known that l, (stxn Linnen, a citizen of the Republic of Switzerland, residing at Chicago, in the county otl Cook and State oi Illinois. haveI invented certain new and usct'ul Improvements in Ozonizers, of which the following is a specification. K

This invention relates to ozonizers or mechanisms for producing ozone, of the general type shown and described in Letters Patent ot' the United States, To. 951,443, granted to me on the Sth day of March,

Objects of this invention are, to secure a better distribution ot' the'l electrical discharge over the discharge surface, to prevent heating of 'the discharge surfaces, and to prevent. the formation of undesirable gases, as, for example, nitrous ox1d, by pro- `viding an adequate area from which the l to provide means for securing a better tiow past the dischargesurfaces, thus insuring that the ozonized air will be removed evenly and continuously from the discharge zone,

and thus avoiding the forming, from time to time, ot' pockets containing highly ozonzed air, which would detract from the propervand best operation ofthe mechanism and facilitate the formation of undesirable gases; to provide additional means for insuring the movement of air through the device, separate and distinct from the ozonizing blades, and at the same time to give added security against; the possibility of inj uring people by dangerous electrical shocks; to arrange the part-s in such manner as to secure the most perfect and zulvantageous circftilation of air through the device; to provide novel and accurate means for ,ing the rate of generation of'ozone, the same time regulating the rato of y device in such a way that the' amount'of ozone carried oft by each cubic )unit of air will be practically the same,

and at whether the rate of air flow is large or small.

f tional elevation of the 'l ther objects will from a. detailed descrlotlon of t-he invention, which ,consists ot construction and combinadescribed and In the drawingsFig-ure l shows a sec device taken on the line l-l of Fig. 2, looking in the direction of the arrows,- Fig. 2 shows a sectional plan ot air around and` rcgulat? rate of case, the speed taken 011 the line 2*.(3

cross-section -v a portion into alternating erator may be used to of Fig. l, looking in arrows; Fig. 3 shows a taken on the linev of Fig. l, looking inv the direction of the arrows; Fig. l shows a detail front elevation of the rotating and stationary electrodes, the projecting shaft. carrying the supplemental fan being cut ott',- Fig. 5 is a sectional detail of the rotating and` stationary electrodes, the supplemental fan being .cut away; Fig. G is a detail ot' my improved rotating electrode shoe; Fig. 7 is an electrical diagram showing one arrangement of connections for securinga variable amount of electricall discharge approximately proportionate to the rot-ation of the air fan, use being made of a motor generator; and Fig. 8 shows an electrical diagram similar to Fig. 7, use being made, however, of a rotary converter.

It will be the direction of the understood that in the embodiment of my invention I provide a. stationary electrode and a rotating electrode spaced a Suitable distance troni the former and insulated therefrom in any suitable manner, so thatvan electrical:'discharge will occur between the electrodes but so thatarcing will tcrial. v

' In order to secure charge, it is necessar tial current, which can best be obtained through the use of alternating current of moderate potential stepped up in a trans 'formel'. l-n case the source ot electrical supply is an alternating current, the device may be arranged to use this current directly a proper electrical disy to use 1n the. transformer for stepping up to sel' cure .the high potential and also to use another 1 rent for running the '1ro-tor which drives the rotatingelectrode ind fan. In case the source of electrical supply is a direct current, means mustbe provided for changing current for use in the transformer, while at the same time means must be provided for rotating the electrode and fan. Obviously, a motor genaccompl'ish both pur-. poses, the rotating electrode and tan being placed on the same shaft with the generator and motor and the alternating current. being secured from the generator. In this of rotation will be approxi` mately proportional to the potential on the discharge current, )ortion of this cur- Patented Sept. 6, 19 1Q. A

e prevented by means of the insulating ma-I .a high potenin the same ratio. Therefore, when varying the potentlal of the direct current 1n orderto vary the speed of the rotating electrode, and also thea generator, the potential otthe i discharge wll not necessarily be proporthe same time that the speed'of the rotatingtional to thfi speedwof rotation of the elec.- trode and of the fan. Since the amount of ozoneY generated is approximately prcpor tional to the potential of the discharge, it is seen that the amount of ozone generated for each revolution of the electrode will not necessarily be the same for all speeds of rotation when using a motor generator. Houfever, a rotary converter', being a machine in which the alternating current slip rings are directly connected to the direct current commutator, is a machine in which the alternating current potential Ais exactly proportional to the direct 'current potential. Therefore, When using a rotary converter the speed of rotation and the alternatino current potential will bot-h be proportiona to the direct currentvoltag'e, and therefore the potential of the discharge will rise-at element is increased. Thus the total amount of ozone generated will increase with the speed of the rotating electrode and of the fan, and therefore the amount of ozone generated for each revolution Vwill `be practically constant. In other Words, by provid# ing means forv varying the alternating current potential in the properratio with re-l spect to the speeddot rotation, the amount,

of ozone generated per revolution maybe kept constant for all speeds, and thus the ozone density. of air delivered may be the tricaleld.

same when using the machine at high speeds as at low speeds. p,

It nwill be understood that in order to secure the most perfect results the ozonized air must be promptly carried away :from

the electrical field, as anylin ering of this.

air in the field promotes the recomposition 4of the newly formed ozone and the heat of theelclvconduce's totheformation of nitrogenous compounds. In other Words,the c1rculation ot' air through "the electrical field and` away from the electrodes must be ra idli4 and perfect to secure the best results. ne ot' the objects of my invention` is to form the shoe electrodes 1n such Wa as to pro'- vide acirculationof air whic will carry the gases immediately away from the eleca motor generator oi" rotary convertcl'of suitable type and size; ,l0 is an yalterlnhting current transformer-11 is a rheostat of proper design and size; l2 is the outer cas.

ing covering the stationary electrode; 13 is -a supplemental fan, and 14 is an inclosing box or case.

As in the previous construction, the ozon-Y iorlner, the two electrodes .being 4Separated by an insulating annulus of proper thick ness, width and composition. Referring particularly to Figs. 4 and 5, the insulating annulus is shown at l5, surrounded by a strip of metal foil 16 of a width preferably less than the annulus, so that an insulating vtape or protector 17 may inclose the strip lo', and be bent down at its edges against the annulus so as to` entirely lnclose Vthe electrode, thus protectingit` and preventing anelectricaldischarge taking place fromY it over the edge of the annulus.

In order to securely hold the annulus and stationary contact in place, I provide a block 18, of Wood or other insulating material, having cut into its upper face a seg'-4 mental groove to receive the lower portion of the annulus, elect-rode andy tape. I lthen. pass the strap or casing 12, of insulating material, around the u per portion of the i passedrv through the block 18.

Y The. haft ot hermotoror Vconverter is shovvn at 21 in Fig. 5,*projectingdbeynd the 4hearnu an amount suclen'bto receive an lnsulatmghub 22, This hub carries the ro tat'ing electrode,whichk is-in the form 'of a central ring portion '23 and provided with a plurallty'of blades 524, of Vpro er form to cause a movement of air throng the device.

Each of these blades is provided with a shoe 25, preferably erforated over its entire face, as will beexpained. As this electrode rotates, a discharge Will take place from these shoes, which are in closev proximity to the yannulus, to' and through the latter to the stationary electrodel surrounding the out side of the annulus. This discharge will `occur approximately equally over the entire Vsurface of each shoe, so that the amountof ozone thus generated Willincrease with the .total area of all of the shoes. lAs the elec trode rotates, a current of air `will be thrown outwardly by lreason of the shapeof the-1 blades, and this current of air will cari' oil' the ozone uniform-ly, thus insurinfr auni-l form density of ozone in the air which` leaves Vthe device. Howevenin order to facilitate the movement of air immediately around the rotating electrodes und to insure that there-will be formed no pockets of air adc lfigures, v9.'representaI jacent these electrodes, I provide-theholes (.26) in each shoe.` These will permit air to pass through the shoes asthey rotate, thus carrying oil' the vncwly'forn'led ozone and `bringing in fresh air to he'acted upon.

Theflnsulating hub 22f1sfextended outward a considerable distance in the form out a shaft 27, Whicli ca-riesen its'end a alo cular insulating annulus, a stationary electrode in the form of a band of conducting material surrounding the annulus on its exterior periphery, and ay rotating electrode adjacent the annulus and spaced therefrom a distance to create an electrical discharge .liet-Ween the electrodes, the rotating electrode being provided with a plurality of discharge shoes of a width substantially the saine as that of the stationary electrode band, substantially as described.

4. In a device of the class described, an insulating annulue, a stationary electrode surrounding the annulus and spaced therefrom a distance to crc-ate an electrical 4dischanfige between the electrodes, the rotating annulus being provided with a plurality of discharge shoes, each provided with a plurality of air holes whereby when the rotating electrode is in motion air draft will be created through said holes to remove the ozonized air from the electrodes, substantially as described.

5. In a device of the class described, a, stationary electrode, a rotating electrode spaced therefrom a istance to create an e ectrical discharge between the electrodes, and an air fan adjacent the rotating electrodeandinsulated therefrom and adapted to create an air draft to remove the ozonized air, substantially as described.

6. In a device of the class described, two

clcctri'idcs aud a fan for creating an air draft to reiuovethe oxonized air, a rotary `onvcrtcr and a transforu'ier, the fan rotativcly connected to the rotary converter and one circuit of the transformer electrically connected to the slip rings of the rotary converter and the other circuit; of the transt'oriucr heilig Isuitably connected to the electrodes, and means for varying the potential oidirect current supplied to the rotary con- .vert er whereby thespe'ed of the rotary converter and the alternating current potential across' 4its slip rings may be Varied simultaneously, substantiall lasdescribedl y Y. l In a device of tlie class described, a eircular stationary electrode and a .rotating electrode concentric with the stationary electrode and spaced therefrom a dist-ance to create anelectrical disc-har e,'tl1e rotating electrode comprising a plura ity of air draft vanes each carrying onits periphery a discharge shoe, each 'dlscharge shoe being provided with a plurality of transverse holes whereby when the rotating'electrode is in moti n an air draft will'lbe created around the electrodes and through the holes to remove the ozoniaed air, substantially as described. OSCAR LINDER.

V'itnesse's:

R. D. SMALL,

THOMAS A. BANNlNe, Jr.. 

